标题： 测试粒子在准反德西特正则黑洞中的运动 显示英文标题

标题： Motion of test particles in quasi anti-de Sitter regular black holes

摘要： 我们探讨了两种新型正则时空的特性，这些时空表现出非零的真空能量项，以（准）反德西特相的形式出现。 具体而言，第一个度规是球对称的，而第二个度规则是通过将广义纽曼-贾尼斯算法应用于第一个度规得到的，它是轴对称的。 我们表明与这两个度规相关的有效流体的状态方程在渐近情况下趋向于负值，类似于宇宙加速膨胀的第五元素。 此外，我们研究了测试粒子的运动，展示了我们的模型与那些表现出非零反德西特相的更传统度规之间的主要差异。 显示英文摘要

摘要： We explore the characteristics of two novel regular spacetimes that exhibit a non-zero vacuum energy term, under the form of a (quasi) anti-de Sitter phase. Specifically, the first metric is spherical, while the second, derived by applying the generalized Newman-Janis algorithm to the first, is axisymmetric. We show that the equations of state of the effective fluids associated with the two metrics asymptotically tend to negative values, resembling quintessence. In addition, we study test particle motions, illustrating the main discrepancies among our models and more conventional metrics exhibiting non-vanishing anti-de Sitter phase.